The best replacement for tazobactam is cefoperazone sulbactam.

The best alternatives to tazobactam are rated as following:
★★★★★  cefoperazone sulbactam
★★★★  meropenem
★  sulbactam

Your alternative for tazobactam is not listed? Suggest!
Speaking about tazobactam, one probably shouldn't forget about piperacillin.

Other search terms related to tazobactam and their ratings are:

★★★★★ piperacillin
★★ ceftriaxone
You have in mind a companion for tazobactam and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of tazobactam in all years. Click on graph for more.
cefoperazone sulbactam